Anatomy "Inguinal canal" 11/2
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| Where do the testes develop | retroperitoneal (extraperitoneal)space of posterior abdominal wall
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| What guides testes in their descent into scrotum | gubernaculum
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| In order to get to the scrotum the testes must pass from | inside to outside the abdominal cavity
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| What are the tubes and vessels of a testis called | spermatic cord
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| What does the spermatic cord create as it dives through muscle wall, fascia , and other stuff | inguinal canal
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| As the testis and spermatic ford pass through lower abdominal wall what does it pick up | covering from some of the muscles and fascia of abdominal wall
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| Are womens inguinal canal development similar to ours | Hell yes (minus the testis)
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| What produces an inguinal hernia | weakness in lower abdominal wall created by the inguinal canal leads to protrusion of intestines through abdominal wall
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| What is the scrotum basically | a cutaneous sac that holds the testis
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| What is Dartos fascia | a membranous layer of fascia immediately deep to skin
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| What is Dartos fascia continuous with | Scarpas fascia (inferior abd. Wall) and Colles fascia (perineum)
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| Does the dartos fasica continue onto the shaft of the penis | you betcha
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| what creates the sctoral septum that divide scrotum into left and right compartments | Dartos fascia
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| Contraction of what muscle wrinkles the sac and brings testis closer to abdominal wall | Dartos muscle
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| What is anterior scrotum innervated by | branches of ilioinguinal nerve
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| What is posterior scrotum innervated by | branches of perineal nerve and branches of posterior femoral cutaneous nerve
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| What is each testis suspended by in scrotum | spermatic cord
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| What is the testis fibrous outer covering | tunica albuginea
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| Fibrous septa divides the internal testis into | lobules
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| Where are sperm produced | seminiferous tubules
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| What is track of sperm from seminiferous tubules to epididymis | sem. Tubes-> straight tubules-> rete testis-> efferent ductules->epididymis
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| Basic characteristics of epididymis | highly convoluted tubule goes along the superior pole and posterior surface
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| Where and shape of head of epididymis | superior pole, coiled
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| Where and shape of body of epididymis | posterior margin, highly coiled
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| Where and shape of tail of epididymis | inferior pole, straightens out becomes ductus deferens
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| What is a remnant of peritoneum that surrounds the testis except along epididymis | tunica vaginalis (parietal layer and visceral layer)
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| What does the spermatic cord contain | testicular artery, pampiniform plexus, ductus deferens, nerve fibers, lymph vessels
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| What does testicular artery arise from | abdominal aorta inferior to renal artery
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| Where does the right testis drain blood to | IVC
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| Where does the left testis drain blood to | left renal vein
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| What does the ductus deferens do | conduct sperm from epididymis to ejaculatory duct
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| What kind of nerves are applied to testicular artery | somatic sensory and postganglionic sympathetic
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| What kind of nerve fibers accompany the ductus | parasympathetic
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| Where do lymph vessels of testis drain to | posterior abdominal lymph nodes
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| What is the inguinal canal | oblique passage in abdominal wall about 4cm long that transmits spermatic cords in males (round ligament of uterus in females)
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| What is the shape of inguinal canal | crescent shaped opening
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| What does the aponeurosis of external abdominal oblique form in inguinal canal | Pouparts ligament, superficial inguinal ring, Gambernats ligmanet, Coopers ligament
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| What is the rolled under inferior margin of the aponeurosis that attaches b/t the ASIS and pubic tubercle | inguinal (Poupart's) ligament
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| What does the spermatic cord go through to pass from inguinal canal to scrotum | superficial inguinal ring
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| What do the medial most fibers of inguinal ligament turn posterior and become | Lacunar (Gimbernat's) ligament
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| What does gimbernat's ligament form | the Pectineal (Coopers) ligament
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| Where does internal abdominal oblique attach | lateral inguinal ligament and pubic crest
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| What does the transversus abdominis attach | lateral part of inguinal ligament and pubic crest
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| What is the common tendon the internal oblique and transversus attach to pubic crest with | conjoint tendon (inguinal falx)
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| What is the site that the spermatic cord pushes through the transversalis fascia before entering inguinal canal | deep inguinal ring
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| What makes the floor of inguinal canal | inguinal ligament
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| What makes the roof of inguinal canal | arcade of internal oblique and transverus that arch over spermatic cord
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| What makes the anterior wall of inguinal canal | aponeurosis of external oblique, reinforced by internal oblique where it attaches to inguinal ligament
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| What makes posterior wall of inguinal canal | transversalis fascia, reinforced by conjoint tendon
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| What 2 nerve pass through the superficial ring (they are not part of spermatic cord) | ilioinguinal nerve and genital branch of genitofemoral nerve
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| What muscle does the genital branch of genitofemoral nerve innervate | the CREMASTER
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| What forms the internal spermatic fascia | transversalis fascia
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| What is the Cremaster formed from strands of | internal oblique
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| What does the Cremaster do | help pull testis closer to abdomen for temp maintenance
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| What forms the external spermatic fascia | external abdominal oblique
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| During development what is the extension of peritoneum that gets drawn with testis into scrotum | vaginalis
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| In normal development what does the vaginalis do upon maturation | becomes a bubble of peritoneum that surrounds testis
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| What happens is vaginalis remains patent | can be a site of inguinal hernia
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| What demarcates the two kinds of inguinal hernias | if abdominal contents do or do not enter inguinal ring
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| What are the landmarks of inguinal triangle (Hesselbachs triangle) | iliopubic tract,
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| Inferior epigastric, lateral border of rectus abdominis |
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| The iliopubic tract marks the _____ border | inferior
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| The inferior epigastric marks the ________ border | lateral
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| The lateral rectus abdominis marks the ____border | medial
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| Where is deep inguinal ring located | lateral and superior to inferior epigastric
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| What is a loop of bowel that enters the deep ring | indirect inguinal hernia
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| What is a congenital hernia | and indirect inguinal hernia that follows a patent vaginalis
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| Where will a congenital hernia appear | superficial inguinal ring or extend to scrotum
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| What is bad about a herniated loop of bowel | grave risk for strangulation and necrosis
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| What is it when bowel protrudes through abdominal wall | direct inguinal hernia
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| What is a direct inguinal hernia also called | acquired hernia
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| What is another herniation inferior to inguinal canal | femoral herniation
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| What normally prevents inguinal bowel herniation | contraction of abdominal muscles closes lumen of canal
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